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Normal-phase liquid chromatography/Fourier transform infrared spectrometry for analysis of nonpolar material with semipreparative, analytical, and microbore columns

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac00254a007· OSTI ID:5106551
Results which have evolved from an evaluation of high performance liquid chromatography/Fourier transform infrared spectrometry (HPLC/FTIR) employing semipreparative, analytical, and microbore scale separations are presented. Normal-phase chromatography on silica gel has been carried out with Freon-113 elution. Model mixtures of aliphatic and aromatic hydrocarbons and nonpolar constituents in coal liquefaction process solvents have been separated. Best results have been obtained with the semipreparative and microbore modes because of the higher sample concentration developed at the detector. This study has shown the feasibility of microbore HPLC/FTIR which will enable chromatographers to economically use exotic solvents with large infrared windows.
Research Organization:
Virginia Polytechnic Inst. and State Univ., Blacksburg
DOE Contract Number:
FG22-81PC40799
OSTI ID:
5106551
Journal Information:
Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 55:3; ISSN ANCHA
Country of Publication:
United States
Language:
English